[Collection]:Analog signal
[Signal type]:4~20mA/0~20mA
[Interface]:RS485
[Size]:108*75*37mm
[I/O channel]:4-channel
[Feature]:Modbus RTU
[Weight]:226g±5g
[Feature]:E820-AIO is the analog signal collection product designed by Ebyte. With RS485 communication network, E820-AIO transmits the analog signal of scattered field data point via AD transformation to master or control remote home site via the PC.
| No. | Parameter Name | Parameter value | Description |
| 1 | Size | 108 * 75 *37mm | Pressing line interface is not included. |
| 2 | Average weight | 226g±5g | Pressing line interface is not included. |
| 3 | Input signal type | 0-20mA | Analog signal input range. |
| 4 | Acquisition channel | 4 channel input | 4 channel Single-endedinput of analog signal. |
| 5 | Acquisition rate | Full channel 10Hz | Acquisition rate for analog signal. |
| 6 | Interface | RS485：1 * 5 * 3.81 mm | Line pressing |
| 7 | Supply voltage | 5 ~ 36V DC | Note: The module will be destroyed if the voltage is higher than 36V. |
| 8 | Working current | 12V/50mA | 5V/90mA，12V/50mA，24V/30mA，36V/20mA( The over 100mA output current is recommended when the output power is not used). |
| 9 | Communication level | RS485 | RS485 |
| 10 | Communication address | 1-247 | 1-247 can be configurable, the default is 1. |
| 11 | Acquisition accuracy | 0.1%FS | Accuracy of analog signal collection. |
| 12 | Baud rate | Default: 9600 | It can be configured from 1200~115200. |
| 13 | Working temperature | -40℃～+65℃ | Industrial grade. |
| 14 | Isolation protection | 3000vDC | Lightening strike, Surge protection. |
| Pin | Definition | Function | Description |
| 1 | DC-IN | Pressing line power input positive | Power input, range: DC10-28V. 12V, and 24V are recommended. |
| 2 | GND | Pressing line power input negative | Power supply GND. |
| 3 | AGND | Communication common ground | When communicating with RS485, the DTU won’t be used, while when communicating with RS232, it will be grounded. |
| 4 | RS485_B | Interface B of RS-485 | Interface B of RS-485 connected to Device B. |
| 5 | RS485_A | Interface A of RS-485 | Interface A of RS-485 connected to Device A. |
| 6 | AI1+ | Analog signal input channel 1 positive | Input pin of analog signal forms the input with the GND1 pin. |
| 7 | AI1- | Analog signal input channel 1 negative | To be used in pairs with AI1+ |
| 8 | AI2+ | Analog signal input channel 2 positive | Input pin of analog signal, forms the input with the GND2 pin. |
| 9 | AI2- | Analog signal input channel 2 negative | To be used in pairs with AI2+ |
| 10 | AI3+ | Analog signal input channel 3 positive | Input pin of analog signal, forms the input with the GND3 pin. |
| 11 | AI3- | Analog signal input channel 3 negative | To be used in pairs with AI3+. |
| 12 | AI4+ | Analog signal input channel 4 positive | Input pin of analog signal forms the input with the GND4 pin. |
| 13 | AI4- | Analog signal input channel 4 negative | To be used in pairs with AI4+. |
| 14 | GND | Power supply output negative | The negative internal of power supply connected to pin 2 GND. |
| 15 | Vout | Power supply output positive | Power supply output, the voltage is decided by the pin1(internal connecting to pin 1). |
| 16 | reset | reset | Long press to reset the equipment parameters to factory settings. Reset success L1 and L2 indicator lights flash once |
| 15 | Earthing pole | Earthing pole | - |
| Order online |
| 【eBay】：https://www.ebay.com/usr/cdebyte |
| 【Aliexpress】：https://www.aliexpress.com/store/2798183 |
| 【Alibaba】：https://www.alibaba.com |
| For batch order/customized product |
| 【Sales hotline】：+86-28-61399028 Ext.812 |
| 【E-mail】：service@cdebyte.com |
| Technical support |
| 【Submit online】：http://www.ebyte.com/en/apple-technology.aspx |
| 【E-mail】：support@cdebyte.com |
| 产品 型号 | Interface | Collection | I/O channel | signal type | Package | Size (mm) | Feature | 技术 手册 | 样品 购买 |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
| E820-DTU(2I2-433L) | Analog quantity | SX1278 | 433M | 30 | - | - | Screwing | 105*79*25 | 2-channel,Modbus RTU | ||
| E820-AIO(UI-485-4-5) | RS485 | analog signal | 4 channel input | 0~5V | Screwing | 82*84*25 | Modbus RTU | ||||
| E820-AIO(II-485-4-20) | RS485 | analog signal | 4 channel input | 4~20mA 0~20mA | Screwing | 82*84*25 | Modbus RTU |
